Step 1Preheat oven to to 425°. In a large ovenproof skillet (or in a large baking dish), toss butternut squash with olive oil, garlic and thyme. Season with salt and pepper, then scatter bacon on top.
Step 2Bake until the squash is tender and the bacon is cooked through, 20 to 25 minutes.
Step 3Remove skillet from oven and top with mozzarella and Parmesan. Bake for another 5 to 10 minutes, or until the cheese is melty.